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    SubjectRe: [patch 1/9] Guest page hinting: unused / free pages.
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    On Fri, 2006-09-01 at 13:09 +0200, Martin Schwidefsky wrote:
    > +++ linux-2.6-patched/mm/page_alloc.c 2006-09-01 12:49:35.000000000
    > +0200
    > @@ -515,6 +515,7 @@ static void __free_pages_ok(struct page
    > reserved += free_pages_check(page + i);
    > if (reserved)
    > return;
    > + page_set_unused(page, order);
    >
    > kernel_map_pages(page, 1 << order, 0);
    > local_irq_save(flags);

    Do these have anything in common with arch_free_page()? I thought
    marking the pages as being "unused by the kernel" was the whole idea of
    having that hook.

    -- Dave

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